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FILE - In this July 14, 2010 photo, workers at the Hanford nuclear reservation work around a a tank farm where highly radioactive waste is stored underground near Richland, Wash. Six underground radioactive waste tanks at the nation's most contaminated nuclear site are leaking, Gov. Jay Inslee said Friday, Feb. 22, 2013. Inslee made the announcement after meeting with federal officials in Washington, D.C. Last week it was revealed that one of the 177 tanks at south-central Washington's Hanford Nuclear Reservation was leaking liquids. Inslee called the latest news "disturbing." (AP Photo/Shannon Dininny, File)

FILE - In this July 14, 2010 photo, workers at the Hanford nuclear reservation work around a a tank farm where highly radioactive waste is stored underground near Richland, Wash. Six underground radioactive waste tanks at the nation's most contaminated nuclear site are leaking, Gov. Jay Inslee said Friday, Feb. 22, 2013. Inslee made the announcement after meeting with federal officials in Washington, D.C. Last week it was revealed that one of the 177 tanks at south-central Washington's Hanford Nuclear Reservation was leaking liquids. Inslee called the latest news "disturbing." (AP Photo/Shannon Dininny, File)